As you can see in the video above, the helicopter appears ready for takeoff, but soon, it starts vibrating haphazardly, ...

The Boeing CH-47 Chinook is a dual-rotor tandem helicopter, the Kamov Ka-27 has a coaxial design where two rotors are mounted on the same vertical axis, while tilt rotor helicopters such as the ...

Check out SlashGear's guide on how Kaman's modern K-Max helicopters use intermeshing rotors for an in-depth explanation on this rotor configuration. Focke-Achgelis Fa 223 Drache ...

In contrast, however, a tiltrotor aircraft, like the V-22 Osprey — which tilts its two rotors by 90° from vertical flight like a helicopter and then forward to cruise like a turboprop airplane ...

The main rotor of the doomed helicopter that crashed into the Hudson River was finally recovered Monday — which could provide crucial information as investigators continue to probe what caused ...

Rotor failure could have been mechanical problem. It's also possible there was a mechanical failure or a defect with a component of the helicopter, Brauchle said.

The coaxial rotor design is so efficient NASA chose it for its Mars Helicopter "ingenuity," which had to fly in an atmosphere that is only 1/100th as dense as Earth’s. Auto-piloted electric ...

Rotor Technologies is now in production on a full-size unmanned helicopter for civilian use. Based on the Robinson R44 Raven II, the R550X flies for more than three hours, at speeds up to 150 mph ...

Helicopter meets airplane. Unlike most helicopters, which feature an enormous rotor on the top and a small one at the back, Racer lacks a traditional tail rotor but sports those two wing-attached ...

KUALA LUMPUR, Malaysia — Two Malaysian military helicopters collided midair and crashed during a training session on Tuesday, killing all 10 people on board and injuring a swimmer in a pool ...

A tour company helicopter tumbled out of the sky over New York City on Thursday, April 10, eyewitnesses said — describing the scene as the craft slammed into the water of the Hudson River ...

If you're asked to name a helicopter with dual main rotors the chances are you will pick the Sikorsky Chinook, one of the most iconic military helicopters of all time.However, the concept of such ...